EP3382197B1 - Control method and apparatus for wind turbine - Google Patents

Control method and apparatus for wind turbine Download PDF

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Publication number
EP3382197B1
EP3382197B1 EP16867544.5A EP16867544A EP3382197B1 EP 3382197 B1 EP3382197 B1 EP 3382197B1 EP 16867544 A EP16867544 A EP 16867544A EP 3382197 B1 EP3382197 B1 EP 3382197B1
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EP
European Patent Office
Prior art keywords
wind
wind speed
thrust
max
power generator
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EP16867544.5A
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German (de)
English (en)
French (fr)
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EP3382197A4 (en
EP3382197A1 (en
Inventor
Wei Yang
Fen TAO
Jie Liu
Maoshi WEN
Youchuan TAO
Yanni YANG
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CSIC Haizhuang Windpower Co Ltd
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CSIC Haizhuang Windpower Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0276—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/048—Monitoring; Safety
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/32—Wind speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/322—Control parameters, e.g. input parameters the detection or prediction of a wind gust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/332—Maximum loads or fatigue criteria
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2619—Wind turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present disclosure relates to the technical field of wind power generator set control, and in particular to a control method and a control apparatus of a wind power generator set.
  • Wind energy is a kind of clean and safe renewable resources. Wind power generation by means of a wind power generator set can guarantee energy security, adjust energy structure and alleviate environmental pollution, and thus is one of the most mature, the most widely used and the best prospective power generation methods, which has a great significance to achieve sustainable development.
  • a wind power generator set is usually designed by taking a level of wind resource characteristics specified in the IEC standards or GL specifications as an input standard. Turbulence in the wind resource characteristics has a direct impact on a fatigue load of the wind power generator set and is directly relevant to extreme gusts giving rise to an extreme load, thus having a great influence on lifespan of the wind power generator set.
  • the turbulence is a natural uncontrollable factor, but turbulence intensity can be measured.
  • To reduce influence of the turbulence on the wind power generator set generally actual measured turbulence intensity is compared with the levels of turbulence intensity specified in the IEC standards or GL specifications.
  • the shutdown manner in the prior art results in a serious loss of generated electric energy.
  • the loss has little influence on a wind power plant with a flat terrain, an outstanding wind power characteristic, and with a small scale of wind power generator set not at a prevailing wind direction, while has great influence on a wind power plant with a complex terrain, a less obvious wind power characteristic, and with a large scale of wind power generator set or at a prevailing wind direction.
  • Document EP1988284A1 discloses a method of operating a wind turbine, wherein for a reduction of a wind load impacting on the wind turbine the rotational speed of the rotor and/or the electrical power output of the wind turbine are reduced depending on a deviation of the wind speed from the average wind speed.
  • Document GB2476506A discloses a wind turbine having an anemometer e.g. a Doppler Lidar, Sodar or Radar, to sense multiple upstream wind conditions including wind speed, direction and turbulence e.g. vertical or horizontal shear. Anemometer signals are processed to correct for axial induction and coherence and to detect an event which could give rise to low cycle fatigue loading on one or more components of the wind turbine.
  • the system controller takes the action depending on the nature and severity of the extreme condition detected. This may include a significant reduction in power generated through reduction in rotor speed or torque, complete shutdown of the generator and yawing of the nacelle and rotor in response to a change in wind direction.
  • the present disclosure provides a control method and an apparatus of a wind power generator set, to not only reduce influence on a wind power generator set when turbulence intensity is beyond the specified level but also lower a loss of generated electric energy.
  • a control method of a wind power generator set in the present disclosure includes:
  • the above step of acquiring a wind speed at a location of the wind power generator set, calculating turbulence intensity according to the wind speed, and determining a wind speed distribution range corresponding to the turbulence intensity includes:
  • the above step of determining a thrust variation amplitude of thrust in the wind speed distribution range based on a relationship among the thrust suffered by a wind wheel of the wind power generator set, a thrust coefficient and the wind speed includes:
  • the above step of adjusting a maximum rotating speed and a maximum torque of the wind wheel in the wind speed distribution range according to the thrust variation amplitude includes:
  • the method further includes: restricting the maximum torque according to a power generation system characteristic curve of the wind power generator set.
  • a control apparatus of a wind power generator set in the present disclosure includes:
  • the acquisition module includes:
  • the determining module includes:
  • the adjusting module includes:
  • the apparatus further includes: a restricting module, configured to restrict the maximum torque according to a power generation system characteristic curve of the wind power generator set.
  • a restricting module configured to restrict the maximum torque according to a power generation system characteristic curve of the wind power generator set.
  • a wind speed at a location of the wind power generator set is acquired, turbulence intensity is calculated according to the wind speed, and a wind speed distribution range corresponding to the turbulence intensity is determined; a thrust variation amplitude of the thrust in the wind speed distribution range is determined based on a relationship among the thrust suffered by a wind wheel of the wind power generator set, a thrust coefficient and the wind speed; and a maximum rotating speed and a maximum torque of the wind wheel in the wind speed distribution range are adjusted according to the thrust variation amplitude, where the maximum rotating speed and the maximum torque makes a fatigue load of the wind power generator set in the wind speed distribution range meet a preset standard.
  • a wind speed distribution range is determined according to actual measured turbulence intensity, and then a maximum rotating speed and a maximum torque are adjusted according to the wind speed distribution range.
  • a fatigue load of a wind power generator set in the wind speed distribution range is made to meet a preset standard by adjusting the maximum rotating speed and the maximum torque, instead of shutting down the wind power generator set.
  • influence on the wind power generator set is reduced when the turbulence intensity is beyond the specified level and a loss of generated electric energy is lowered.
  • Figure 6 is a flowchart of a control method of a wind power generator set provided in the present disclosure.
  • a control method of a wind power generator set provided according to an embodiment of the present disclosure includes steps S101 to S103.
  • step S101 a wind speed at a location of the wind power generator set is acquired, turbulence intensity is calculated according to the wind speed, and a wind speed distribution range corresponding to the turbulence intensity is determined.
  • the turbulence intensity refers to random variation amplitude of a wind speed in ten minutes, which is defined as a ratio of an average wind speed standard deviation in ten minutes to the average wind speed during the period.
  • the turbulence intensity is a dominating factor of a normal fatigue load sustained by a wind power generator set during operation, and is also one of the most important parameters of safety level classification for a wind power generator set in IEC61400-1.
  • FIG. 1 a schematic diagram of wind speed distribution corresponding to any known average wind speed and standard deviation can be drawn according to formula (2).
  • the theory of small probability events probability of occurrence is small than 5%
  • an important area proportional relation in a Gaussian distribution i.e., the area within the horizontal axis range ( v - 1.96 ⁇ , v + 1.96 ⁇ ) is 95.4% of the total area
  • the wind speed is mainly distributed in the range of ( v - 1.96 ⁇ , v + 1.96 ⁇ ) due to the influence of turbulence intensity, which is illustrated with a thick line in Figure 1 .
  • the corresponding wind speed distribution range When turbulence intensity corresponding to the same average wind speed increases, the corresponding wind speed distribution range will be enlarged. As shown in Figure 2 , as the increase of turbulence intensity, the main wind speed distribution range extends from ( v - 1.96 ⁇ , v + 1.96 ⁇ ) to ( v - 1.96 ⁇ 1 , v + 1.96 ⁇ 1 ), that is, the maximum wind speed v max in the wind speed distribution is increased from v + 1.96 ⁇ to v + 1.96 ⁇ 1 .
  • the step of acquiring a wind speed at a location of the wind power generator set, calculating turbulence intensity according to the wind speed, and determining a wind speed distribution range corresponding to the turbulence intensity includes:
  • a thrust variation amplitude of the thrust in the wind speed distribution range is determined based on a relationship among the thrust suffered by a wind wheel of the wind power generator set, a thrust coefficient and the wind speed.
  • the turbulence near a rated wind speed plays a dominant role on a fatigue load of most key or important components of the wind power generator set.
  • the turbulence intensity beyond the specified level should be converted into a theoretical rated wind speed by a calculation method according to standard turbulence intensity definition, and a control is performed to decrease the fatigue load generated by a over-standard turbulence intensity corresponding to the rated wind speed.
  • the thrust coefficient is relevant to pitch angle of a blade and wind speed of a wind wheel. Therefore, by adjusting the pitch angle of a blade or the wind speed of a wind wheel, the purpose of decreasing the thrust coefficient may be realized.
  • the wind wheel rotating speed may fall in region II or region I for influence of wind speed range.
  • force variation intensity of a wind power generator set in a direction perpendicular to the wind wheel plane is defined as formula (10), representing variation amplitude of the thrust suffered by the wind power generator set produced by random wind speed variation, as the principle of the turbulence intensity definition.
  • F v thrust suffered at the average wind speed v
  • F I is a thrust variation amplitude during the preset time at the average wind speed v and at the turbulence intensity I
  • F v i thrust suffered by the wind wheel at the i-th sampling point with an instantaneous wind speed of v i
  • N is the number of sampling points.
  • F I in different turbulence intensity is calculated by formula (12) according to formula (10).
  • F I F max ⁇ I ⁇ F v ⁇ 2 + F min ⁇ I ⁇ F v ⁇ 2 2 F v ⁇
  • the step of determining a thrust variation amplitude of the thrust in the wind speed distribution range based on a relationship among the thrust suffered by a wind wheel of the wind power generator set, a thrust coefficient and the wind speed includes:
  • ⁇ is an air density
  • A is a wind wheel swept area
  • v is a wind speed
  • C t ( ⁇ , ⁇ ) is the thrust coefficient relevant to the pitch angle ⁇ of the blade of the wind wheel and the tip speed ratio ⁇
  • R is a wind wheel radius
  • ⁇ min is a minimum rotating speed of the wind power generator set in grid connection
  • ⁇ low is a minimum rotating speed of the wind power generator set
  • ⁇ high is a maximum rotating speed of the wind power generator set
  • ⁇ opt is an optimum pitch angle
  • F v is thrust suffered at the average wind speed v
  • F I is a thrust variation amplitude during the preset time at the average wind speed v and at the turbulence intensity I
  • F v i is thrust suffered by the wind wheel at the i-th sampling point with an instantaneous wind speed of v i .
  • step S103 a maximum rotating speed and a maximum torque of the wind wheel in the wind speed distribution range are adjusted according to the thrust variation amplitude.
  • the maximum rotating speed and the maximum torque makes a fatigue load of the wind power generator set in the wind speed distribution range meet a preset standard.
  • F I is controlled by adjusting rated rotating speed w r , and the corresponding F v will be changed when adjusting the w r .
  • ⁇ r ′ satisfying the equation (13) is calculated in combination with formulas (5)-(12).
  • F I 2 F max ⁇ I 2 ⁇ F v ⁇ ′ 2 + F min ⁇ I 2 ⁇ F v ⁇ ′ 2 2
  • F v ⁇ ′ F max ⁇ I 1 ⁇ F v ⁇ 2 + F min ⁇ I 1 ⁇ F v ⁇ 2 2
  • F v ⁇ F I 1
  • the influence of wind wheel rotating direction on a drive chain torsional fatigue load also needs to be considered.
  • the statistic which has a great influence on the drive chain torsional fatigue is the mean value of load amplitude. That is, the influence of turbulence variation on a torsional fatigue load may be controlled by means of keeping the mean value of the drive chain torque amplitude about the same.
  • T r is rated torque.
  • the wind wheel rotating speed may fall into region II or region I in Figure 4 due to impact of wind speed range.
  • the wind power generator set is running in a state with optimum tip speed ratio, and the rotating speed is calculated according to formula (8).
  • the torque T is calculated according to formula (15), where C p is wind energy utilization factor.
  • T ⁇ R 5 C p ⁇ 2 2 ⁇ 3 G 3
  • T max ⁇ I 2 T max ⁇ I 1 ⁇ T min ⁇ I 1 + T min ⁇ I 2
  • the step of adjusting a maximum rotating speed and a maximum torque of the wind wheel in the wind speed distribution range according to the thrust variation amplitude includes:
  • the turbulent wind speed distribution range is determined based on influence of turbulence intensity on wind speed distribution and by means of a statistic method of great possibility events in the probability theory, then the force variation intensity of a wind power generator set in a direction perpendicular to wind wheel plane is defined in combination with definition of the turbulence intensity, and finally a solution to control the rotating speed and torque to satisfy a standard fatigue load is obtained according to a calculation principle of the fatigue load.
  • influence of over-standard turbulence intensity on a fatigue load of a wind power generator set may be eliminated, and a loss of electric energy production brought by a fatigue load caused by decreasing the over-standard turbulence may be reduced.
  • Figure 7 is a structure schematic diagram illustrating a control apparatus of a wind power generator set provided in the present disclosure.
  • the control apparatus of a wind power generator set includes an acquisition module 1, a determining module 2, and an adjusting module 3.
  • the acquisition module 1 is configured to acquire a wind speed at a location of the wind power generator set, calculate turbulence intensity according to the wind speed, and determine a wind speed distribution range corresponding to the turbulence intensity.
  • the determining module 2 is configured to determine a thrust variation amplitude of the thrust in the wind speed distribution range based on a relationship among the thrust suffered by a wind wheel of the wind power generator set, a thrust coefficient and the wind speed.
  • the adjusting module 3 is configured to adjust a maximum rotating speed and a maximum torque of the wind wheel in the wind speed distribution range according to the thrust variation amplitude.
  • the maximum rotating speed and the maximum torque makes a fatigue load of the wind power generator set in the wind speed distribution range meet a preset standard.
  • the acquisition module 1 includes an acquisition module, a calculation unit, and a first determining unit.
  • the acquisition module is configured to acquire a wind speed at the location of the wind power generator set in a preset period, and calculate an average wind speed v in the preset period.
  • I denotes the turbulence intensity corresponding to the average wind speed v
  • v i denotes an instantaneous wind speed of the i-th sampling point
  • N denotes the number of sampling points in the preset period.
  • the determining module 2 includes a second determining unit, a third determining unit, and a fourth determining unit.
  • ⁇ is an air density
  • A is a wind wheel swept area
  • v is a wind speed
  • c t ( ⁇ , ⁇ ) is the thrust coefficient relevant to the pitch angle ⁇ of the blade of the wind wheel and the tip speed ratio ⁇
  • R is a wind wheel radius
  • ⁇ min is a minimum rotating speed of the wind power generator set in grid connection
  • ⁇ low is a minimum rotating speed of the wind power generator set
  • ⁇ high is a maximum rotating speed of the wind power generator set
  • ⁇ opt is an optimum pitch angle
  • F v is thrust suffered at the average wind speed v
  • F I is a thrust variation amplitude during the preset time at the average wind speed v and at the turbulence intensity I
  • F v i is thrust suffered by the wind wheel at the i-th sampling point with an instantaneous wind speed of v i .
  • the adjusting module 3 includes a rotating speed adjusting unit and a torque adjusting unit.
  • control apparatus provided in embodiments of the present disclosure further includes a restricting module.
  • the restricting module is configured to restrict the maximum torque according to a power generation system characteristic curve of the wind power generator set.
  • control apparatus of a wind power generator set provided in the embodiments can adopt the control method of a wind power generator set in the foregoing method embodiments to realize all technical solutions in the above method embodiments.
  • Functions of each module may be achieved specifically according to methods in the foregoing method embodiments.
  • a wind speed at a location of the wind power generator set is acquired, turbulence intensity is calculated according to the wind speed, and a wind speed distribution range corresponding to the turbulence intensity is determined; a thrust variation amplitude of the thrust in the wind speed distribution range is determined based on a relationship among the thrust suffered by a wind wheel of the wind power generator set, a thrust coefficient and the wind speed; and a maximum rotating speed and a maximum torque of the wind wheel in the wind speed distribution range are adjusted according to the thrust variation amplitude, where the maximum rotating speed and the maximum torque makes a fatigue load of the wind power generator set in the wind speed distribution range meet a preset standard.
  • a wind speed distribution range is determined according to actual measured turbulence intensity, and then a maximum rotating speed and a maximum torque are adjusted according to the wind speed distribution range.
  • a fatigue load of a wind power generator set in the wind speed distribution range is made to meet a preset standard by adjusting the maximum rotating speed and the maximum torque, instead of shutting down the wind power generator set.
  • influence on the wind power generator set is reduced when the turbulence intensity is beyond the specified level and a loss of generated electric energy is lowered.
  • fatigue loads which are adjusted and controlled by means of the above methods, are calculated respectively under conditions of exceeding 20%, 40%, and 60% of A-class turbulence according to the standard A-class turbulence intensity in the GL specifications.
  • the following tables illustrate a ratio of a fatigue load at a key coordinate point of a wind power generator set to a standard A-class turbulence design value, in the condition of a ratio of adjusted rotating speed to rated rotating speed ⁇ r and a ratio of adjusted torque to rated torque T r calculated by means of the foregoing methods for different over-standard turbulence intensity.
  • Table 1-11 by applying the methods to adjust a controlling state synthetically according to turbulence intensity variation, a fatigue load at a key coordinate point of a wind power generator set is at most 3% over a standard design value, which hardly affects security and service life of the wind power generator set.
  • a fatigue load on a key or important component of a wind power generator set may satisfy standard design requirements under different degrees of over-standard turbulence intensity, and the power outputted by the wind power generator set may be maximized based on synthesizing all aspects of the fatigue load.
  • the system is described as units with various functions.
  • the functions of the units may be realized in a same or multiple software and/or hardware.
  • Steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly with hardware, a software module executed by a processor, or a combination thereof.
  • the software module may be placed in a Random Access Memory (RAM), a memory, a Read Only Memory (ROM), an electrically-programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or a storage medium in any other forms well known in the art.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Wind Motors (AREA)
EP16867544.5A 2015-11-27 2016-02-29 Control method and apparatus for wind turbine Active EP3382197B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510848517.0A CN106812658B (zh) 2015-11-27 2015-11-27 一种风力发电机组的控制方法及装置
PCT/CN2016/074828 WO2017088315A1 (zh) 2015-11-27 2016-02-29 一种风力发电机组的控制方法及装置

Publications (3)

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EP3382197A1 EP3382197A1 (en) 2018-10-03
EP3382197A4 EP3382197A4 (en) 2019-07-17
EP3382197B1 true EP3382197B1 (en) 2021-04-07

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US (1) US10240583B2 (da)
EP (1) EP3382197B1 (da)
CN (1) CN106812658B (da)
DK (1) DK3382197T3 (da)
WO (1) WO2017088315A1 (da)

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CN106812658B (zh) 2019-09-06
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CN106812658A (zh) 2017-06-09
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US10240583B2 (en) 2019-03-26
US20170268487A1 (en) 2017-09-21

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